| use core::num::dec2flt::float::RawFloat; |
| |
| #[test] |
| fn test_f32_integer_decode() { |
| assert_eq!(3.14159265359f32.integer_decode(), (13176795, -22, 1)); |
| assert_eq!((-8573.5918555f32).integer_decode(), (8779358, -10, -1)); |
| assert_eq!(2f32.powf(100.0).integer_decode(), (8388608, 77, 1)); |
| assert_eq!(0f32.integer_decode(), (0, -150, 1)); |
| assert_eq!((-0f32).integer_decode(), (0, -150, -1)); |
| assert_eq!(f32::INFINITY.integer_decode(), (8388608, 105, 1)); |
| assert_eq!(f32::NEG_INFINITY.integer_decode(), (8388608, 105, -1)); |
| |
| // Ignore the "sign" (quiet / signalling flag) of NAN. |
| // It can vary between runtime operations and LLVM folding. |
| let (nan_m, nan_e, _nan_s) = f32::NAN.integer_decode(); |
| assert_eq!((nan_m, nan_e), (12582912, 105)); |
| } |
| |
| #[test] |
| fn test_f64_integer_decode() { |
| assert_eq!(3.14159265359f64.integer_decode(), (7074237752028906, -51, 1)); |
| assert_eq!((-8573.5918555f64).integer_decode(), (4713381968463931, -39, -1)); |
| assert_eq!(2f64.powf(100.0).integer_decode(), (4503599627370496, 48, 1)); |
| assert_eq!(0f64.integer_decode(), (0, -1075, 1)); |
| assert_eq!((-0f64).integer_decode(), (0, -1075, -1)); |
| assert_eq!(f64::INFINITY.integer_decode(), (4503599627370496, 972, 1)); |
| assert_eq!(f64::NEG_INFINITY.integer_decode(), (4503599627370496, 972, -1)); |
| |
| // Ignore the "sign" (quiet / signalling flag) of NAN. |
| // It can vary between runtime operations and LLVM folding. |
| let (nan_m, nan_e, _nan_s) = f64::NAN.integer_decode(); |
| assert_eq!((nan_m, nan_e), (6755399441055744, 972)); |
| } |
